Questions, answered

Juncture Lab is a platform where finance students and professionals prove investment decision skill by trading through hidden historical market regimes. Your results become a verifiable, certified track record you can put on a resume, LinkedIn, or bring to an interview.

You trade real historical markets with the dates and headlines hidden. You cannot tell what year it is or what happened next, so results reflect your actual decision-making rather than an information advantage. Your return, Sharpe ratio, alpha, and drawdown are computed server-side and certified into your track record.

A certified track record is a tamper-proof history of your certified runs. Trades execute server-side, the market regime is hidden and chosen by the server, and every metric is computed on the server, so nothing can be edited from the browser. Anyone viewing your public profile sees the same numbers you do.

Certified runs use hidden regimes you cannot preview, trade execution and scoring happen server-side, and certified-run creation is rate-limited. Certified signals are tested across a fixed battery of market regimes you cannot pick, so there is no lucky single scenario to farm by retrying.

The library spans 11 regimes from 2000 to 2023, including the 2000 dot-com bust, the 2008 financial crisis, the 2009 recovery, the 2015 and 2018 volatility periods, the 2020 COVID crash, and the 2022 bear market. Each run covers roughly one year of daily market data.

Sandbox mode is unlimited free practice where you can advance time by any amount. Certified mode records to your public track record, uses a hidden market regime, and enforces a minimum 5 trading-day advance so the result cannot be gamed.

The Signal Builder lets you define a rule-based trading signal (for example, buy when RSI is below 30). Certifying a signal runs it across a fixed battery of five diverse market regimes and records the aggregate return, alpha, Sharpe ratio, and worst-case drawdown to your track record, out-of-sample.

Alpha is your return minus an equal-weight buy-and-hold benchmark over the same market period. Positive alpha means you beat simply holding the market; negative alpha means you lagged it. It is computed server-side so it cannot be inflated.

Finance students building a credential, investment clubs running competitions, university departments teaching decision-making, and professionals who want a verifiable record of investment skill that a resume line cannot capture.

Paper trading uses live markets, so you can read the news and trade on hindsight. Juncture Lab hides the dates entirely: you cannot know the year, the headlines, or how the market ended. That isolates genuine decision-making skill from information advantage.

Sandbox practice is unlimited and free. The free plan includes 5 certified runs per month. Pro unlocks unlimited certified runs, and university department plans provide program-wide access with instructor dashboards.

All data is encrypted in transit and at rest, and trade execution is server-side only, so nothing can be manipulated from the browser. We do not share individual data without consent.